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The Hewlett-Packard Model 130B Oscilloscope is a general purpose Oscilloscope, it can be used with either internal or external sweeps which can be either internally or externally synchronized and it can be obtained in either the cabinet or rack type mounting. Because of its high sensitivity and balanced input, the Model 130B may often be used directly with transducers, enabling you to see a direct presentation of phenomena desired without having to resort to preamplifiers. Some of the special features of this Oscilloscope are as follows: A. LINEAR INTEGRATOR SWEEP Generator The accurate direct reading sweeps are obtained from a Miller-integrator sweep circuit which insures a high order linearity and stability. This type of sweep Generator, is more reliable and independent of tube characteristics than other types of sweep Generator. B. X5 SWEEP EXPANSION You speed observation and analysis of transients by expanding a two centimeter segment of the trace to 10 centimeters for easy viewing of detail. This X5 sweep expander, may be used on all sweep time settings and expands the fastest sweep time to .2 microsecond/cm. C. CALIBRATED AMPLIFIERS Voltage measurements of various waveforms are quickly made with the 130B, accurate within ±5%. A built-in Calibrator which is accurate within ±2% permits quick verification and standardization of the Amplifier gain. Phase shift measurements can be made accurately with this Oscilloscope over a wide range of input frequencies.